Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics
To scientifically characterize the dynamic mechanical characteristics of the rubber pad under the rail of fasteners and its influence on the dynamic response of the vehicle-rail-viaduct system, taking the rubber pad under the rail of WJ-7B high-speed railway (HSR) with constant resistance as an exam...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/5562152 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850158140178300928 |
|---|---|
| author | Linya Liu Zhiyuan Zuo Yunlai Zhou Jialiang Qin Zhenyu Niu |
| author_facet | Linya Liu Zhiyuan Zuo Yunlai Zhou Jialiang Qin Zhenyu Niu |
| author_sort | Linya Liu |
| collection | DOAJ |
| description | To scientifically characterize the dynamic mechanical characteristics of the rubber pad under the rail of fasteners and its influence on the dynamic response of the vehicle-rail-viaduct system, taking the rubber pad under the rail of WJ-7B high-speed railway (HSR) with constant resistance as an example, a TFDV model was applied to characterize the viscoelasticity of the rubber pad and the theoretical model in the dynamic coupling of vehicle-rail-bridge was also studied. The results show that the energy storage modulus and loss factor of rubber pad under rail show a curved surface relation versus the change of frequency-temperature. In a certain frequency/temperature range, the energy storage modulus and loss factor of rubber pad under rail increase with the decrease of temperature and the increase of frequency, and the influence of low temperature on dynamic parameters is more significant. With the decrease of temperature, the minimum value of total dynamic flexibility decreases, and the corresponding extreme frequency shifts to high frequency. Viscoelastic dynamic features of rubber pad under rail mainly affect the dynamic response of vehicle subsystem and rail-bridge subsystem. With the decrease of ambient temperature of rubber pad, the dominant frequency band of power spectrum curve of each structure shifts to high frequency. |
| format | Article |
| id | doaj-art-6b64c1c4bdee43778c9b58e4afbce80d |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6b64c1c4bdee43778c9b58e4afbce80d2025-08-20T02:23:57ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/55621525562152Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System DynamicsLinya Liu0Zhiyuan Zuo1Yunlai Zhou2Jialiang Qin3Zhenyu Niu4Engineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiaotong University, Nanchang 330013, ChinaEngineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiaotong University, Nanchang 330013, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaEngineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiaotong University, Nanchang 330013, ChinaEngineering Research Center of Railway Environment Vibration and Noise, Ministry of Education, East China Jiaotong University, Nanchang 330013, ChinaTo scientifically characterize the dynamic mechanical characteristics of the rubber pad under the rail of fasteners and its influence on the dynamic response of the vehicle-rail-viaduct system, taking the rubber pad under the rail of WJ-7B high-speed railway (HSR) with constant resistance as an example, a TFDV model was applied to characterize the viscoelasticity of the rubber pad and the theoretical model in the dynamic coupling of vehicle-rail-bridge was also studied. The results show that the energy storage modulus and loss factor of rubber pad under rail show a curved surface relation versus the change of frequency-temperature. In a certain frequency/temperature range, the energy storage modulus and loss factor of rubber pad under rail increase with the decrease of temperature and the increase of frequency, and the influence of low temperature on dynamic parameters is more significant. With the decrease of temperature, the minimum value of total dynamic flexibility decreases, and the corresponding extreme frequency shifts to high frequency. Viscoelastic dynamic features of rubber pad under rail mainly affect the dynamic response of vehicle subsystem and rail-bridge subsystem. With the decrease of ambient temperature of rubber pad, the dominant frequency band of power spectrum curve of each structure shifts to high frequency.http://dx.doi.org/10.1155/2021/5562152 |
| spellingShingle | Linya Liu Zhiyuan Zuo Yunlai Zhou Jialiang Qin Zhenyu Niu Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics Shock and Vibration |
| title | Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics |
| title_full | Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics |
| title_fullStr | Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics |
| title_full_unstemmed | Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics |
| title_short | Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics |
| title_sort | insights into underrail rubber pad s effect on vehicle track viaduct system dynamics |
| url | http://dx.doi.org/10.1155/2021/5562152 |
| work_keys_str_mv | AT linyaliu insightsintounderrailrubberpadseffectonvehicletrackviaductsystemdynamics AT zhiyuanzuo insightsintounderrailrubberpadseffectonvehicletrackviaductsystemdynamics AT yunlaizhou insightsintounderrailrubberpadseffectonvehicletrackviaductsystemdynamics AT jialiangqin insightsintounderrailrubberpadseffectonvehicletrackviaductsystemdynamics AT zhenyuniu insightsintounderrailrubberpadseffectonvehicletrackviaductsystemdynamics |